Radiator



Nov. 11, 1930.

R. L. HAWKNS RADIATOR Filed oct. 24. 1927 Panarea am. 11, ieee res RAYMOND L. HAWKINS, OF DETROIT, MICHIGAN, ASSIGNOR TO LONG MANUFACTUR- ING COMPANY, OF DETROIT, MICHIGAN, A. CORPORATION OF MICHIGAN RADIATOR rlhis invention relates to radiators and more especially to improvements in radiators finding particular utility wherever heat exchange apparatus is required.

55 The invention has as one of its objects to provide an improved radiator construction designed to permit the ready expansion and contraction of the radiator without distortion thereof or other objectionable reaction.`

Y to "ierniit the eX iansion and contraction of the hea-ders and tubes as a unit independent of the side plates.

rFneinvention also contemplates a structure which may be `1nanufactured economi- :La cally and assembled with facility and to this `end contemplates a header comprising a sub stautial box-like shell or casing open at one end thereof. Oneof the walls of the header, preferably the side opposite the open side 3 thereof, is formed with tube receiving apertures into which the adjacent ends of the tubes extend. l/Vith a header of an open shelllike construction the tubes may be soldered in place from the inside of the header where- :3 upon the header is closed by ineansof a cover resting on a peripheral shoulder adjacent the Y open side of the header. y

The several objects, advantages and novel details of construction of this invention will be made more apparent as this description proceeds especially when considered in connection with the accompanying drawings wherein:

Figure 1 is a vertical sectional `view through a radiator constructed in accordance with this invention.

Figure 2 is a horizontal section taken substantially on the plane indicated by line 2-2 in Figure 1, and

. Figure 3 is a fragmentary perspective view.

Referring now more particularly to the drawings wherein like reference characters indicate like parts, it will be noted that the radiator consists of spaced headers 10 each of 59 which comprises a substantially box-like shell or casing open atone side thereof. The wall11 of each header is formed with a plurality of tube receiving apertures 12-iwith which thetubes 13 of theradiator engage.

The reference character 14 indicates the usual fin plates `associated with the tubes 13. l y

rlhe side wall 15 of each header is formed with a peripherally inwardly extending shoulder 16 arranged adjacentthe open side of the header with which a plate-like cover member 17 is adapted to engagem rlhis` cover member 17 may obviously be secured in place in any desired manner but is `preferably brazed or welded thereto around its periphery as indicated at 18.` For closing the sides of the radiator and for `the additional purposes `of imparting thereto `an attractive appearance I provide side platesltleaclh of which has its longitudinal edgesbent to form returnebent portions 20. These return bent portions provide grooves or recesses engageable with oppositely extending projections `or nribs 21formed on each header 10;V Thus the side plates 19 may be slidably connected 4to the headers 10 to permit a relative sliding `movement between the parts while .preventing lateral disengagement of the side plates. In assembling a radiator constructed in accordance with this invention `the tubes 13 maybe introduced into the tube apertures 1&2 and soldered in place from therinside thereof, the cover .plate 17 being,not .yet in place. With the tubes 18 projecting upwardly from the lower header as viewed in Figure 1,.the side plates 19 `may then be slid into engage- Iment with the ribs 21 formed ou the lower header 10. The upper header 10 is then placed in engagementwith the upper ends ofthe tubes 13 `and slidably engaged with the upper ends of side plates 19. The ends ot the tubes 13 may be soldered to the upper header 10 from the inside whereupon cover 17 is secured in place in the manner hereinbefore referred to.

In consequence of this construction the ex` tween the headers and side plates taking place f2 f- Y v 1,781,511l

l5l Y contraction 'of the headers and tubes as a unit may be permitted even with the side plates? 19 'permanently attached to the headers at projections, v a a Y Y l f [3. 'In a radiator,spaced-headers, laterally extending ribs formed on saidheaders, side Y plates,fthe longitudinal edgesfot said plates Y under these conditions. Thus the headers are not held rigidly spaced by the side plates but are permitted to move toward and away from one another in consequence of the eX- pansion and contraction of the tubes so that the'radiator does not becomeA distorted and the joints between the tubes and headers are maintained intact. f

Y -1 Obviously other means may be employed vforconnec'ting the side plates to the headers to permita relative sliding movement there' between although the herein described-con'- struction has proven to be economicalfelcient and otherwisesatisfactory. Ity will1 'likewise be apparentthat the expansion and one'end thereof. 'Y Thus reservationis made to 'make such changes,.modiiications and rearrangementsof the parts as may beide'emed necessary or expedient and as may come within thepurview of theaccompanying claims.

Y What I Vclaim as my invention is i 1. In a rad1ator,spaced headers, aside y plate and projections andreces'ses carried respectively by said headers'and plate for slid-` i ably securing saidA plate tosaid-headers.vr

2. In a radiator,;-spaced headers, aside d plate, projections formedy ongsaid headers,

the edgesof saidside plate being bent providing recesses for yslidable -enga'gernentwith said being Vreturn-bent forming recessesk engageable with saidv ribs'for slidably` securing said y5. In a radiator, asheader member, a side plate member, and a projection formed on' one of said members engageable inV arecess formed .in the other of said members for slidf ably securing said membersVV together where-V Y by said, header is movableV relative to said side'pla'te. Y Y.

In'testimony whereof I affix m'y signature.

* 'd RAYMONDVL. HAwKINs. 

